Adjustable ventilator



April 8 1924. 134897450 B. T. MESKER ADJUSTABLE VENTILATOR Filed Aug. 15 1923 lu l 20 Eff/MPO T/Yzwme Patented Apr. 8, 1924.

UNITED STATES 1,489,450 PATENT OFFICE.

BERNARD T. -MESKER, OF ST. LOUIS, MISSOURI, ASSIGNO'R TO MESKER BROTHERS IRON COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

ADJUSTABLE VENTILATOR.

Application filed August 15, 1923. Serial No. 657,476.

To all whom it may concern:

Be it known that I, BERNARD 'l. MusKEn, a citizen of the United States, residing at St. Louis, Missouri, have invented a cer- 6 tain new and useful Improvement in Adjustable Ventilators, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the 19 same, reference being had to the accompanying drawings, forming part of this application.

This invention relates'to a new and useful improvement in ventilators and the objects of the invention are to provide a ventilator which can be easily adjusted to regulate the size of the ventilating opening.

Further objects of the invention are to provide an interengagement between the jambs and the sash of the window or ventilator whereby said ventilator can be swung ou sliding fulcrums coincident with and adjustable along said jambs so that the ventilator can be moved in a vertical plane to vary the size of the ventilating opening.

Still further objects of the invention are to provide an adjustable ventilator which is of simple and durable construction, does not bind and consequently can be easily adjusted and which can be manufactured economically.

lVith these and other objects in view my invention consists in certain novel features of construction and arrangement of parts hereinafter more fully described and claimed. and illustrated in the accompanying drawings, in which Figure 1 is a perspective view showing the ventilator in position in a wall.

Figure 2 is a vertical section taken through the ventilator and showing the same in closed position.

Figure 3 is a similar view showing the ventilator in open or extended position.

Figure 4 is a horizontal cross section taken on line 44 of Figure 2.

Figure 5 is a fragmentary detail view of the angle bar mounted on the bottom member of the ventilator supporting frame and illustrating the manner of locking the ventilator chain in position. I

Figure 6 is a perspective detail view of the upper portion of the ventilator sash and showing the method of adjustably interengaging the sash with the jambsn Figure 7 is a vertical cross section taken through a modified form of a ventilator wherein the sash is pivotally mounted at its lower end and is adapted to be extended inwardly. I

Figure 8 is a fragmentary plan view of a modified form of the transverse bottom member or sill member and shows a key hole formed therein'for engaging the chain.

Referring by numerals to the accompanying drawings, 10 represents a window casing having a ventilator opening 11, and lights 12, arranged above and below said opening. A ventilator or window 14 is swingingly arranged in the opening 11 and the frame thereof comprises stiles 15, top rail 16, a bottom rail 17, and muntins 18. The stiles, rails and muntins are formed of commercially rolled bars preferably T-shape in cross section and in the construction of the ventilator frame, the panels or laterally flanged portions of the members are presented outwardly with the web portions projecting inwardly.

The ventilator opening 11 is formed by a pair of jambs 19, a top transverse member 20, and a bottom transverse member 21, which are also formed of commercially rolled T-shaped bars and have their web portions presented inwardly. The stiles of the ventilator are formed near one of their ends, preferably the upper one, with offsets or bends 22, so that the said upper ends of the stiles are offset relative to. the remaining portion of the ventilator frame, as indicated at 15 and are located rearwardly of the inwardly presented flanges 19 of the jambs 19 and are adapted to overlie and rest against the inner faces thereof and the top rail 16 rests against the inner face of depending flange of transverse member 20. The flanges of the remaining ortions of stiles 15 and of bottom member 1 are located exteriorly of and overlie the flanges of jambs 19 and bottom rail 21, respectively, 100 and rest against their outer faces.

Where the outer flange 22 of offset or bend 22 intersects the lnwardly resented flange 19 of the corresponding jam 19, said flange 22 is provided with a notch 24 and 1 forms a seat for-the edge of said flange 19*. Thus the side edges of said notches 'form slidable fulcrums for the window or ventilator frame and flanges 19 serve as bearings for said fulcrums so that the ventilator 11 i frame may be swung into an extended or open position. This method of mounting t e ventilator frame between the jambs provides simple and eflicient means for ivotally enga ing the ventilator with the ambs without t e use of pins or other pivotal devices and at the same time permits a sliding movement of the ventilator fulcrums in a vertical plane so that the size of the ventilator openlng may be varied at will.

In order to maintain the ventilator in extended position, a pair of side arms 25 are provided and are pivotally connected at their upper ends a suitable distance from ofl'sets 22 to stiles 15 to insure the perfect balancing of the ventilator, and at their lower ends they are pivotally secured to jambs 19. Normally, the friction necessary to maintain the ventilator at any desired angle between the vertical and horizontal planes, is provided in the notched portions of stiles 15 and the flanges 19* of jambs 19. A chain 26 is connected at one end to the bottom rail 17 and at its opposite end to the top rail 16 and is threaded through a double key-hole opening 27 formed in a transverse angle bar 28, W ich latter is fixed to transverse member 21. By manipulating the chain, the ventilator can be easily moved into an extended position by pulling on that portion of the chain which 1s connected to the top rail, or the ventilator may be closed by manipulating that portion of the chain which is connected to the bottom rail. The key-hole opening 27 in bar 28 is adapted to engage individual links of chain 26 and to engage and prevent the accidental displacement of said chain, thus locating the ventilator in its adjusted position. If desired, portions of flanges 19 immediately above the notches 22 when the ventilator occupies closed position are mutilated to form li s or water-sheds 29 which overhang said notches and prevent water from passing through said notches.

In Figures 1 to 6 inclusive, a ventilator is shown having its fulcrum arranged in its upper end and opening or extending outwardly.

In Figure 7, a modified form of ventilator is shown which is adapted to be extended inwardly and operates on a fulcrum located at the lower end of said ventilator. This ventilator 30 opens inwardly and has its upper portion adapted to rest against the inner faces of the laterally projecting flanges of the casing 31 and has an offset lower portion which is adapted to engage the outer faces of said flanges. Side arms 32 are pivotally connected at their upper ends to casing 31 and at their lower ends to ventilator 30 a suitable distance from the offset portion 30". The ventilator is adjusted by means of a chain 34 so as to regulate the ventilator opening which in this instance is located between the lower end of the ventilator and the transverse bottom member of the casing. The ventilator is placed in position between the jambs by placing the ventilator obliquely in the ventilator opening and bringing the notches 22 1n alignment with the inwardly" presented flanges of the jambs. The ventilator is then straightened so that notches 22 engage the flanges l9 and the supporting arms 25 are then secured to the ventilator. The interengagemcnt of the stiles of the ventilator and the jambs prevents lateral displacement of the ventilator while arms 25 maintain the same in proper alignment with the flanges of the supporting frame. The overlapping engagement between the flange portions of the ventilator and the ven- The ventilator of my improved construc-' tion can be easily and quickly operated and the ainb engaging notched offset portions provide the necessary friction to maintain the ventilator in adjusted position without the use of extraneous friction means such as compression springs or sliding shoes. The notched portions frictionally engaging the jambs form fulcrums for the ventilator which may he slid or adjusted along the flanges of the jambs to regulate the size of the ventilating opening.

The arms form simple means for supporting the ventilator in position and said arms are so arranged that when the ventilator is closed, they are concealed arid out of the way. The ventilator is of simple construction, contains few parts and can be manufactured at low cost.

Vhile I have shown and described the preferred forms of my improved ventilator. it is obvious that various changes in the construction and arrangement of parts could be made and substituted for those herein shown and described without departing flanges adapted to be engaged by the notches formed in said stiles.

2. In a ventilator construction, j ambs having inwardly presented flanges, ventilator stiles provided with outwardly projecting flanges and adapted to overlie the flanges of said jambs, each of said stiles being formed with an offset or bend a suitable distance from one of its ends and rovided in its outer flange at said bent portion with a notch for engaging the flange of the corresponding ja-mb and forming a fulcrum for said ventilator.

3. In a metallic window construction, a casing including jambs having inwardly projecting flanges, a ventilator sash arranged within said casin stiles forming part of said sash and fliaving outwardly projecting flanges, portions of said stiles being provided with bends or shoulders to offset one end of said sash, there being notches formed in the flanges of said bent portions to receive and operatively engage the edges of the flanges of said ambs and form a fulcrum for said ventilator sash, and means connected to said sash and said casing for maintaining said ventilator in an extended position.

4. In a metallic window construction, a casing including jambs having inwardly projecting flanges, a ventilator sash arranged within said casing, stiles forming part of said sash and having outwardly rojecting 'flanges, portions of said stiles eing provided with bends 0r shoulders to offset one end, of said sash, there being notches formed in the flanges of said bent portions to receive and operatively engage the edges of the flanges of said jambs and form a fulcrum for said ventilator sash, and a pair of side arms pivotally connected to said sash. and said casing and adapted to hold the ventilator in adjusted position.

5. A metallic ventilator comprising a casing including jambs provided with inwardly projecting flanges, a ventilator sash arranged between said jambs and including stiles having laterally projecting flanges adapted to overlie the flanges of said jambs, portions of said stiles being offset or bent whereby the opposite ends of said stiles engage the opposite faces of the flanges of the jambs, there being notches formed in the flanges of, said stiles at their point of intersection with the flanges of the jambs for receiving the edges of said jamb flanges and forming a fulcrum for the sash, said fulcrums being movable along the flanges of said jambs to regulate the ventilating opening.

6. A metallic ventilator comprising a casing including jambs provided with inwardly projecting flanges, a ventilator sash arranged between said jambs and including stiles having laterally projecting flanges said jambs to regulate the ventilatin openv ing, and means for manipulating said sash.

In a pivotal mount for swinging closure members, the combination of jambs provided with inwardly presented flanges, and a closure member having stiles, portions of which are offset relative to said jambs and provided at their points ofintersection with notches for engaging the edges of the flanges of said jambs thereby forming fulcrums for said closure member.

8. A fulcrum device for swinging closure members comprising in combination, a pair of stationary uprights or jambs provided with inwardly presented flanges, and a closure member provided at its jamb side with outwardly projecting flanges adapted to cooperate with the flanges of said jambs and having portions which are offset or bent relative to said jambs, there being notches formed in the flanges of the closure member for receiving the edges of the flanges of said jambs and forming in cooperation therewith fulcrums for said closure member and adapted to move in a vertical plane along the flanges of said jambs for adjust ing the position of said closure member.

9. In a swinging window construction, the combination of a casing including inwardly flanged jambs, top and bottom transverse members, and window sash consisting of outwardly flanged stiles, top and bottom transverse rails, said stiles being oflset near one of their ends whereby said oflset portions and the corresponding transverse rail are oppositely disposed relative to the remaining ortion of said sash and enga the opposite faces of the jambs and the corresponding transverse member, the flanges of the offset portions of said stiles being provided at their point of intersection with the flanges of the jambs with notches for engaging the edges thereof and forming fulcrums for the sash so that the latter may be swung in extended position and adjusted in a vertical plane when in said open po sltion.

10. In a metallic window construction, the combination of flanged jambs, a sash including stiles ofl'set near their one ends for engaging the opposite'faces of said jambs, and provided with notched portions arranged at right angles to the flanges of said jambs for receiving the edges of said jamb flanges and forming fulcrums for said sash, said fulcrums being adjustable in a vertical plane along the jambs.

11. In a, metallic window construction, the combination of flanged jambs, a sash including stiles offset near their one ends for engaging the opposite faces of said jambs and provided with notched portions arran ed at right angles to the flanges of said jam bs for receiving the edges of said jamb flanges and forming fulcrums for said sash, said fulcrums being adjustable in a vertical plane along the jambs, side arms pivotally connected to said jambs and said sash for supporting the sash in open position, and a chain connected at its ends to the opposite ends of said sash for manipulating the latter.

12. A fulcrum device for swingin closure members comprising a pair 0 stationary uprights or jambs having inwardly presented flanges, and a closure member avmg stiles provided with ofl'set ortions in which are formed notches for rictionally enga ing the flanged portions of said jambs an forming fulcrums for one end of the closure member, said fulcrums being slidable along said flanges, and means engaging the opposite end of said closure member for maintaining the latter in position.

In testimony whereof I hereunto aflix my signature this first day of'August, 1923.

BERNARD T. MESKER. 

